Jepson Flora Project: Jepson Interchange    

link to manual TREATMENT FROM THE JEPSON MANUAL (1993) previous taxon | next taxon
Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California

  • Up-to-date information about California vascular plants is available from the Jepson eFlora.



James R. Shevock

Perennial, shrubs, trees, sometimes dioecious
Leaves generally opposite, simple, generally entire, generally deciduous; stipules 0
Inflorescence: cyme or racemes, generally umbel- or head-like, sometimes subtended by showy, petal-like bracts
Flower generally small, generally bisexual; calyx generally 4-lobed; petals 0 or 4(5), free; stamens generally as many as and alternate petals; ovary inferior, chambers 1–4, each 1-ovuled, style simple, stigma 1–4-lobed
Fruit: generally drupe or berry
Seeds generally 1–2
Genera in family: ± 12 genera, ± 100 species: especially n temp (also s tropical, subtropical). Cult as ornamental (Cornus, Aucuba ); some timber species. Genera diverse; many have been treated as constituting families, but trend is to treat Cornaceae broadly
Reference: [Eyde 1987 Syst Bot 12:505–518]



Perennial, shrubs, trees
Leaves generally opposite or whorled, simple, generally deciduous; both ends generally tapered
Inflorescence small, head- or umbel-like, and surrounded by showy bracts (or cyme, large, open, lacking showy bracts)
Flower generally minute; sepals 4, fused at base; petals 4; stamens 4, attached to receptacle; style 1, thread-like, stigma simple
Fruit: drupe; stone 1–2-chambered
Species in genus: ± 50 species: n temp (rare in s hemisphere); many cultivated as ornamental, some for autumn color. Some fruit used for jam, syrup
Etymology: (Latin: horn, from the hard wood)
Divided by some into at least 6 genera.


C. canadensis L.


Perennial from rhizomes
Stem < 2 dm, generally with 4–6 whorled leaves below inflorescence, pair of leaves near middle of stem
Leaves 2.5–7 cm, elliptic to obovate, glabrous to strigose
Inflorescence: head solitary, 2–4 cm, slender; bracts 4, 0.8–1.6 cm, ovate, whitish, petal-like
Flower: sepals 0.4 mm; petals 1.5 mm, yellowish or ± purplish; style 1.5–2 mm
Fruit generally ± 8 mm, spheric, red; stone smooth
Ecology: Moist forest, bogs
Elevation: 1100 m.
Bioregional distribution: Northwestern California
Distribution outside California: to Alaska, ne Asia, e N.America
Horticultural information: SHD, DRN, WET to moist: 1, 2, 3, 4, 5, 6, 14, 15, 16, 17; GRCVR, DFCLT: best on rotted organic matter.

previous taxon | next taxon
bioregional map for CORNUS%20canadensis being generated

Retrieve Jepson Interchange Index to Plant Names entry for Cornus canadensis
Retrieve dichotomous key for Cornus
Overlay Consortium of California Herbaria specimen data by county on this map
Show other taxa with the same California distribution | Read about bioregions | Get lists of plants in a bioregion
Return to the Jepson Interchange main page
Return to treatment index page

University & Jepson Herbaria Home Page |
General Information | University Herbarium | Jepson Herbarium |
Visiting the Herbaria | On-line Resources | Research |
Education | Related Sites
Copyright © by the Regents of the University of California